Optical Control Near the Lindemann Limit

Coherent control experiments were also performed under intense photoexcitation near the Lindemann stability limit [38-41], above which the long-range order of the crystal would be lost. 

A multiple-pump experiment on Te by Mazur and coworkers revealed that the reflectivity oscillation was enhanced to maximum or canceled completely when At was considerably shorter than nT or (ra+ 1/2)T [32]. In other words, the nuclear vibrations do not stop at their classical turning point, in contrast to the weak excitation case. This departure from a classical harmonic motion is the manifestation of a time-dependent driving force, whose physical origin 

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